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Derivatives and Risk Management Activities - Offsetting Asset and Liabilities (Details) - USD ($)
$ in Millions
Sep. 30, 2022
Dec. 31, 2021
Derivative Assets    
Effect of Collateral Netting (Asset) $ (82)  
Derivative Liabilities    
Effect of Collateral Netting (Liability)   $ 259
Commodity Derivatives    
Derivative Assets    
Effect of Collateral Netting (Asset) (82)  
Derivative Liabilities    
Gross Position - Asset 357 100
Gross Position - Liability (125) (243)
Effect of Collateral Netting (Liability)   259
Net Carrying Value Presented on the Balance Sheet, Total 150 116
Other current assets | Commodity Derivatives    
Derivative Assets    
Gross Position - Asset 311 90
Gross Position - Liability (101) (210)
Effect of Collateral Netting (Asset) (82)  
Net Carrying Value Presented on the Balance Sheet 128 139
Derivative Liabilities    
Effect of Collateral Netting (Liability)   259
Other long-term assets, net | Commodity Derivatives    
Derivative Assets    
Gross Position - Asset 38 3
Gross Position - Liability (3)  
Net Carrying Value Presented on the Balance Sheet 35 3
Other current liabilities | Commodity Derivatives    
Derivative Liabilities    
Gross Position - Asset 6 4
Gross Position - Liability (17) (24)
Net Carrying Value Presented on the Balance Sheet (11) (20)
Other long-term liabilities and deferred credits | Commodity Derivatives    
Derivative Liabilities    
Gross Position - Asset 2 3
Gross Position - Liability (4) (9)
Net Carrying Value Presented on the Balance Sheet $ (2) $ (6)